Question

a can do a piece of work in 25 days and B can finish it in 20 days they work together for 5 days and then a leaves in how many days will be finish the remaining work​

Answer 1

Answer:

Time taken by A to finish the work=25days

Time taken by B to finish the work=20days

A's 1 day's work =1/25 and B's 1day's work =1/20

(A+B) 1 day's work =1/25+1/20=9/100

(A+B) 5 day's work =(5×9/100)=9/20

Remaining work =(1-9/20)=11/20

Now,

1/20 work is done by B in 1day

Hence,11/20 work will be done by B in (11/20×20)days =11days ..

Answer 2

It may help you

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